--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/photon/SDL_phyuv.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,659 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/* This is the QNX Realtime Platform version for SDL YUV video overlays */
+
+#include <stdlib.h>
+#include <string.h>
+//#include <ncurses.h> //only for bool
+#ifndef bool
+#define bool char
+#define TRUE 1
+#define FALSE 0
+#endif
+#include <errno.h>
+
+#include <Ph.h>
+#include <Pt.h>
+
+#include "SDL_error.h"
+#include "SDL_video.h"
+#include "SDL_phyuv_c.h"
+#include "SDL_yuvfuncs.h"
+
+#if 0  //just for reference
+/* YUV data formats			FourCC		   Layout		H sample (YUV)	V sample (YUV)	BPP */
+#define Pg_VIDEO_FORMAT_IYU1		0x31555949	/* U2Y2Y2V2Y2Y2		144		111		12  */
+#define Pg_VIDEO_FORMAT_IYU2		0x32555949	/* U4Y4V4U4Y4V4		111		111		24  */
+#define Pg_VIDEO_FORMAT_UYVY		0x59565955	/* U8Y8V8Y8		122		111		16  */
+#define Pg_VIDEO_FORMAT_YUY2		0x32595559	/* Y8U8Y8V8		122		111		16  */
+#define Pg_VIDEO_FORMAT_YVYU		0x55595659	/* Y8V8Y8U8		122		111		16  */
+#define Pg_VIDEO_FORMAT_V422		0x56343232	/* V8Y8U8Y8		122		111		16  */
+#define Pg_VIDEO_FORMAT_CLJR		0x524a4c43	/* V6U6Y5Y5Y5Y5		133		111		8   */
+#define Pg_VIDEO_FORMAT_YVU9		0x39555659	/* Planar YVU		144		144		9   */
+#define Pg_VIDEO_FORMAT_YV12		0x32315659	/* Planar YUV		122		122		12  */
+
+/* There seems to be no FourCC that matches this */
+#define Pg_VIDEO_FORMAT_YUV420		0x00000100	/* Planar YUV		122		111		16  */
+
+/* These formats are the same as YV12, except the U and V planes do not have to contiguously follow the Y plane */
+/* but they're all the same to us, since we always have 3 plane pointers */
+#define Pg_VIDEO_FORMAT_CLPL	Pg_VIDEO_FORMAT_YV12	/* Cirrus Logic Planar format */
+#define Pg_VIDEO_FORMAT_VBPL	Pg_VIDEO_FORMAT_YV12	/* VooDoo Banshee planar format */
+
+#define SDL_YV12_OVERLAY	0x32315659	/* Planar mode: Y + V + U */
+#define SDL_IYUV_OVERLAY	0x56555949	/* Planar mode: Y + U + V */
+#define SDL_YUY2_OVERLAY	0x32595559	/* Packed mode: Y0+U0+Y1+V0 */
+#define SDL_UYVY_OVERLAY	0x59565955	/* Packed mode: U0+Y0+V0+Y1 */
+#define SDL_YVYU_OVERLAY	0x55595659	/* Packed mode: Y0+V0+Y1+U0 */
+
+#endif 
+
+
+#define OVERLAY_STATE_UNINIT  0
+#define OVERLAY_STATE_ACTIVE 1
+
+/* The functions used to manipulate software video overlays */
+static struct private_yuvhwfuncs ph_yuvfuncs = {
+	ph_LockYUVOverlay,
+	ph_UnlockYUVOverlay,
+	ph_DisplayYUVOverlay,
+	ph_FreeYUVOverlay
+};
+
+
+typedef struct {
+  int id;
+  int width, height;
+  int data_size;              /* bytes */
+  int num_planes;
+  int *pitches;               /* bytes */
+  int *offsets;               /* bytes */
+  char *data;
+  void *obdata;     
+} XvImage;
+
+
+struct private_yuvhwdata {
+	XvImage *image;	
+	FRAMEDATA *CurrentFrameData;
+	FRAMEDATA *FrameData0;
+	FRAMEDATA *FrameData1;
+	PgScalerProps_t	props;
+	PgScalerCaps_t		caps;
+	PgVideoChannel_t *channel;
+	SDL_Rect CurrentWindow;
+	long format;
+	int screen_width;
+	int screen_height ;
+	int screen_bpp ;    //2
+	bool planar;
+	bool scaler_on ;
+	int current;
+	long YStride;
+	long VStride;
+	long UStride;
+	long chromakey;
+	unsigned long State;
+	long flags;
+};
+
+extern PgVideoChannel_t * PgCreateVideoChannel(unsigned type, unsigned flags);
+extern int PgGetScalerCapabilities( PgVideoChannel_t *channel, int format_index, PgScalerCaps_t *vcaps );
+extern int PgConfigScalerChannel(PgVideoChannel_t *channel, PgScalerProps_t *props);
+extern void PgDestroyVideoChannel(PgVideoChannel_t *channel);
+extern PgColor_t PgGetOverlayChromaColor(void);
+
+void
+grab_ptrs2(PgVideoChannel_t *channel, FRAMEDATA *Frame0, FRAMEDATA *Frame1 )
+{
+
+	/* Buffers have moved; re-obtain the pointers */
+	Frame0->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane1);
+	Frame1->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane2);
+	Frame0->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane1);
+	Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2);
+	Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1);
+	Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2);
+
+}
+
+SDL_Overlay *ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
+{
+	SDL_Overlay *overlay;
+	struct private_yuvhwdata *hwdata;
+	int xv_port;
+	int rtncode;
+//	PhRect_t rect;
+//	PhSysInfo_t info;
+//	PhRegion_t region;
+//	short x, y;
+	PtArg_t argt;
+	int i =0;
+//	bool bCont = TRUE;
+	int Priority[20];
+	int Type[20];
+	int entries, select, highest;
+
+	PhDCSetCurrent(0);  //Need to set draw context to window esp. if we we in Offscreeen mode
+
+	/* Create the overlay structure */
+	overlay = (SDL_Overlay *)malloc(sizeof *overlay);
+	if ( overlay == NULL ) {
+		SDL_OutOfMemory();
+		return(NULL);
+	}
+	memset(overlay, 0, (sizeof *overlay));
+
+	/* Fill in the basic members */
+	overlay->format = format;
+	overlay->w = width;
+	overlay->h = height;
+	
+	/* Set up the YUV surface function structure */
+	overlay->hwfuncs = &ph_yuvfuncs;
+
+	/* Create the pixel data and lookup tables */
+	hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata);
+	overlay->hwdata = hwdata;
+	if ( hwdata == NULL ) {
+		SDL_OutOfMemory();
+		SDL_FreeYUVOverlay(overlay);
+		return(NULL);
+	}
+	
+		if (overlay->hwdata->channel == NULL)
+	{
+	
+  
+		if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL) 
+		{
+			SDL_SetError("Create channel failed:%s\n", strerror( errno ));
+			free(overlay->hwdata);
+			free(overlay);
+			return(NULL);
+		}
+#if 0
+		overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps);
+		PgGetScalerCapabilities(overlay->hwdata->channel, 0, &(overlay->hwdata->caps));
+		if (overlay->hwdata->caps.flags & Pg_SCALER_CAP_DOUBLE_BUFFER)
+			overlay->hwdata->props.flags |= Pg_SCALER_PROP_DOUBLE_BUFFER;
+#endif	
+	}
+
+overlay->hwdata->CurrentWindow.x = 0;
+overlay->hwdata->CurrentWindow.y = 0;
+overlay->hwdata->CurrentWindow.w = 320;
+overlay->hwdata->CurrentWindow.h = 240;
+
+
+
+overlay->hwdata->State = OVERLAY_STATE_UNINIT;
+
+overlay->hwdata->screen_bpp = 2;
+overlay->hwdata->scaler_on = FALSE;
+
+overlay->hwdata->screen_width = 1024;
+overlay->hwdata->screen_height  = 768;
+
+overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
+overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof( FRAMEDATA)));
+
+overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
+
+
+//Note you really don't need to do this for SDL as you are given a format, but this is a good example
+
+xv_port = -1;
+i=0;
+	
+while(PgGetScalerCapabilities(overlay->hwdata->channel, i++, &(overlay->hwdata->caps)) == 0) 
+{
+
+		if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YV12) //in SDL
+		{
+			
+			Priority[i-1] = 0;
+			Type[i-1] = Pg_VIDEO_FORMAT_YV12;
+			if(format == Pg_VIDEO_FORMAT_YV12)
+			{
+				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YV12;
+				xv_port = 1; //supported
+				Priority[i-1] = 100; //force selected
+			}
+			
+		}
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YVU9) //in SDL
+		{
+			
+			Priority[i-1] = 0;
+			Type[i-1] = Pg_VIDEO_FORMAT_YVU9;			
+			if(format == Pg_VIDEO_FORMAT_YVU9)
+			{
+				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YVU9;
+				xv_port = 1; //supported
+				Priority[i-1] = 100; //force selected
+			}
+			
+		}
+#if 0 //this part of SDL is YUV specific
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_RGB555)
+		{
+			
+			Priority[i-1] = 3;
+			Type[i-1] = Pg_VIDEO_FORMAT_RGB555;			
+		}
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_RGB565)
+		{
+			
+			Priority[i-1] =  2;
+			Type[i-1] = Pg_VIDEO_FORMAT_RGB565;			
+		}
+		else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB8888)
+		{
+			
+			Priority[i-1] = 1;
+			Type[i-1] = Pg_VIDEO_FORMAT_RGB8888;			
+		}
+#endif
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_IYU1)
+		{
+			
+			Priority[i-1] = 0;
+			Type[i-1] = Pg_VIDEO_FORMAT_IYU1;
+			
+		}
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_IYU2)
+		{
+			
+			Priority[i-1] = 0;
+			Type[i-1] = Pg_VIDEO_FORMAT_IYU2;			
+		}
+
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_UYVY) //in SDL
+		{
+			
+			Priority[i-1] = 7;
+			Type[i-1] = Pg_VIDEO_FORMAT_UYVY;
+			if(format == Pg_VIDEO_FORMAT_UYVY)
+			{
+				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_UYVY;
+				xv_port = 1; //supported
+				Priority[i-1] = 100; //force selected
+			}
+			
+		}
+		else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YUY2) //in SDL
+		{
+			
+			Priority[i-1] = 8;
+			Type[i-1] = Pg_VIDEO_FORMAT_YUY2;			
+			if(format == Pg_VIDEO_FORMAT_YUY2)
+			{
+				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YUY2;
+				xv_port = 1; //supported
+				Priority[i-1] = 100; //force selected
+			}
+			
+		}
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YVYU) //in SDL
+		{
+			
+			Priority[i-1] = 4;
+			Type[i-1] = Pg_VIDEO_FORMAT_YVYU;	
+			
+			if(format == Pg_VIDEO_FORMAT_YVYU)
+			{
+				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YVYU;
+				xv_port = 1; //supported
+				Priority[i-1] = 100; //force selected
+				
+			}
+		
+		}
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_V422)
+		{
+			
+			Priority[i-1] = 5;
+			Type[i-1] = Pg_VIDEO_FORMAT_V422;			
+		}		
+		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_CLJR)
+		{
+			
+			Priority[i-1] = 6;
+			Type[i-1] = Pg_VIDEO_FORMAT_CLJR;		
+		}	
+		else
+		{
+		
+		Priority[i-1] = 0;
+		}
+			
+overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);
+}
+
+	if ( xv_port == -1 )
+	{
+		SDL_SetError("No available video ports for requested format");
+		return(NULL);
+	}
+ 
+//Pick the highest priority format
+entries = i -2;
+highest = Priority[0]; //make first entry top at begining
+select = 0;
+
+for (i = 1; i < entries; i++)
+{
+
+
+   if(Priority[i] > highest)
+   {
+      highest = Priority[i];
+      select  = i;
+   }
+} 
+
+ 
+ 
+ overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps	);
+PgGetScalerCapabilities(overlay->hwdata->channel, select, &(overlay->hwdata->caps));
+overlay->hwdata->props.format = overlay->hwdata->caps.format ;
+
+    overlay->hwdata->format = overlay->hwdata->props.format;  //to make easier for apps to use
+
+
+	overlay->hwdata->props.size = sizeof (overlay->hwdata->props);
+    overlay->hwdata->props.src_dim.w = width;   
+    overlay->hwdata->props.src_dim.h = height;   
+	
+	overlay->hwdata->chromakey = PgGetOverlayChromaColor();
+
+	// Set chromakey in video widget so we can see overlay data
+	/* I don't know where the container widget is!!!, I guess it is in hidden->window*/
+	
+	PtEnter(0);
+	PtSetArg( &argt, Pt_ARG_FILL_COLOR, overlay->hwdata->chromakey, 0 );
+	PtSetResources( window, 1, &argt ); 
+	PtLeave(0);
+
+
+	fflush( stderr );
+
+	overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;
+	overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;
+	//Next line MIGHT have x and y reversed!!!!!!!!!!!!
+	overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;
+	overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;
+		
+
+
+	overlay->hwdata->props.flags =
+	    ~Pg_SCALER_PROP_SCALER_ENABLE | Pg_SCALER_PROP_DOUBLE_BUFFER ;
+
+	if (overlay->hwdata->chromakey) {
+		overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE;
+		overlay->hwdata->props.color_key = overlay->hwdata->chromakey;
+		overlay->hwdata->props.color_key_mask = 0xffffff;
+	} 
+	else
+	{
+		overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE;
+	}
+
+
+	overlay->hwdata->scaler_on = FALSE;
+
+
+
+ rtncode =    PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));	
+	switch(rtncode)
+	{
+	case -1:
+		SDL_SetError("PgConfigScalerChannel failed\n");
+		SDL_FreeYUVOverlay(overlay);
+		return(NULL);
+   		break;
+	case 1:
+		grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
+		break;
+	case 0:
+	default:
+   		break;
+	}
+
+
+	grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
+
+if(overlay->hwdata->channel->yplane1 != NULL)			
+	overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch;
+if(overlay->hwdata->channel->uplane1 != NULL)			
+	overlay->hwdata->UStride = overlay->hwdata->channel->uplane1->pitch;
+if(overlay->hwdata->channel->vplane1 != NULL)			
+	overlay->hwdata->VStride = overlay->hwdata->channel->vplane1->pitch;
+
+
+	overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
+
+
+
+	if (overlay->hwdata->current == -1)
+	{
+		SDL_SetError("PgNextFrame failed, bailing out\n");
+		SDL_FreeYUVOverlay(overlay);
+		return(NULL);
+	}
+        
+        //set current frame for double buffering
+	if(overlay->hwdata->current == 0)
+	{
+		overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
+	}
+	else
+	{
+		overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
+	}
+    
+	overlay->hwdata->State = OVERLAY_STATE_ACTIVE;
+
+
+	/* We're all done.. */
+	return(overlay);
+}
+
+int ph_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+//int rtncode;
+
+if(overlay == NULL)
+   return 0;
+
+//set current frame for double buffering
+	if(overlay->hwdata->current == 0)
+	{
+		overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;
+	}
+	else
+	{
+		overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;
+	}
+
+	//Lock gets the pointer and passes it to the app. The app writes all yuv data into overlay->pixels
+//Note this is defined as Uint8 **pixels;				/* Read-write */	
+	overlay->pixels = &overlay->hwdata->CurrentFrameData->Y; 
+	overlay->pitches  = &overlay->hwdata->YStride;
+		
+	return(0);
+}
+
+void ph_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+int rtncode;
+
+if(overlay == NULL)
+   return ;
+
+		if(overlay->hwdata->scaler_on == FALSE) 
+		{
+			
+		
+		overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE;
+        rtncode =PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
+        	switch(rtncode)
+			{
+				case -1:
+					SDL_SetError("PgConfigScalerChannel failed\n");
+					SDL_FreeYUVOverlay(overlay);
+   					break;
+				case 1:
+					grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
+					overlay->hwdata->scaler_on = TRUE;
+					break;
+				case 0:
+					default:
+					overlay->hwdata->scaler_on = TRUE;
+   					break;
+			}
+//This would be the best place to draw chromakey but we do not have a SDL_Surface in the args
+//This means we might see a chromakey flicker at startup
+		}
+		overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);
+
+
+	if (overlay->hwdata->current == -1) {
+		SDL_SetError("PgNextVideoFrame failed\n");
+		SDL_FreeYUVOverlay(overlay);	
+		return;	
+	}
+
+	overlay->pixels = NULL;
+}
+
+int ph_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect)
+{
+int rtncode;
+
+if(overlay == NULL)
+   return 0;
+
+
+	/*SDL_Rect CurrentWindow*/
+//If CurrentWindow has change, move the viewport
+if((overlay->hwdata->CurrentWindow.x != dstrect->x) ||
+  (overlay->hwdata->CurrentWindow.y != dstrect->y) ||
+  (overlay->hwdata->CurrentWindow.w != dstrect->w) ||
+  (overlay->hwdata->CurrentWindow.h != dstrect->h))
+{
+		if(overlay->hwdata->State == OVERLAY_STATE_UNINIT)
+		return -1;
+
+	overlay->hwdata->CurrentWindow.x = dstrect->x;
+  	overlay->hwdata->CurrentWindow.y = dstrect->y;
+  	overlay->hwdata->CurrentWindow.w = dstrect->w;
+  	overlay->hwdata->CurrentWindow.h = dstrect->h;
+
+	overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;
+	overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;
+	//Next line MIGHT have x and y reversed!!!!!!!!!!!!
+	overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;
+	overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;
+
+	
+     rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));
+
+	switch(rtncode)
+	{
+	case -1:
+		SDL_SetError("PgConfigScalerChannel failed\n");
+		SDL_FreeYUVOverlay(overlay);
+		return(0);
+   		break;
+	case 1:
+		grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);
+		break;
+	case 0:
+	default:
+   		break;
+	}
+}
+
+
+//JB the X11 file did this. We do this in SDL_unlock, we need to confirm that lock and unlock are called for each frame!
+//	XvShmPutImage(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
+//	              hwdata->image, 0, 0, overlay->w, overlay->h,
+//	              dstrect->x, dstrect->y, dstrect->w, dstrect->h, False);	           
+/*  This is what this call is
+int XvShmPutImage (
+   Display *dpy,
+   XvPortID port,
+   Drawable d,
+   GC gc,
+   XvImage *image,
+   int src_x,
+   int src_y,
+   unsigned int src_w,
+   unsigned int src_h,
+   int dest_x, 
+   int dest_y,
+   unsigned int dest_w,
+   unsigned int dest_h,
+   Bool send_event
+)
+*/
+
+	return(0);
+}
+
+void ph_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
+{
+	//struct private_yuvhwdata *hwdata;
+
+	if(overlay == NULL)
+		return;
+	
+	if(overlay->hwdata == NULL)
+		return;
+	
+	overlay->hwdata->State = OVERLAY_STATE_UNINIT;
+
+	if( overlay->hwdata->channel == NULL )
+	{
+		return;
+	}	
+
+	PgDestroyVideoChannel(overlay->hwdata->channel);
+
+	overlay->hwdata->channel = NULL;
+	overlay->hwdata->CurrentFrameData = NULL;  
+	
+	free(overlay->hwdata->FrameData0);
+	free(overlay->hwdata->FrameData1);
+	overlay->hwdata->FrameData0 = NULL;
+	overlay->hwdata->FrameData1 = NULL;
+	free(overlay->hwdata);
+
+}